OSI Model

Question 1

OSI Model: Route Determination

Answer 1

network layer

Question 2

OSI Model: Flow control

Answer 2

transport layer

Question 3

OSI Model: Interface to transmission media

Answer 3

physical layer

Question 4

OSI Model: Provides access for the end user

Answer 4

application layer

Question 5

OSI Model: Format and code conversion services

Answer 5

presentation layer

Question 6

OSI Model: Establishes, manages and terminates sessions

Answer 6

session layer

Question 7

OSI Model: Ensures reliable transmission of data

Answer 7

transport layer

Question 8

OSI Model: Log-in and log-out procedures

Answer 8

session layer

Question 9

OSI Model: Provides independence from differences in data representation

Answer 9

presentation layer

Question 10

OSI Model: Reliable process to process message delivery

Answer 10

transport layer

Question 11

OSI Model: Route selection

Answer 11

network layer

Question 12

OSI Model: Defines frames

Answer 12

data link layer

Question 13

OSI Model: Provides user services such as e-mail and file transfer

Answer 13

application layer

Question 14

OSI Model: Transmission of bit stream across physical medium

Answer 14

physical layer

Question 15

OSI Model: Communicates directly with user’s application program

Answer 15

application layer

Question 16

OSI Model: Error correction and retransmission

Answer 16

data link layer

Question 17

OSI Model: Mechanical, electrical, and functional interface

Answer 17

physical layer

Question 18

OSI Model: Responsibility for carrying frames between adjacent nodes

Answer 18

data link layer

Question 19

Why was the OSI model developed?

Answer 19

Standards were needed to allow any two systems to communicate

Question 20

Standards were needed to allow any two systems to communicate

Answer 20

network

Question 21

The _______ layer lies between the network layer and the application layer.

Answer 21

transport

Question 22

The ______ layer is responsible for the source-to-destination delivery of a packet across multiple network links.

Answer 22

network

Question 23

In the OSI model, as a data packet moves from the lower to the upper layers, headers are

Answer 23

removed

Question 24

Mail services are available to network users through the _______ layer.

Answer 24

application

Question 25

The _________ layer enables the users to access the network.

Answer 25

application

Question 26

In the OSI model, encryption and decryption are functions of the ________ layer.

Answer 26

presentation

Question 27

The _______ layer ensures interoperability between communicating devices through transformation of data into a mutually agreed upon format.

Answer 27

presentation

Question 28

When data are transmitted from device A to device B, the header from A’s layer 4 is read by B’s _______ layer.

Answer 28

transport

Question 29

The physical layer is concerned with the movement of _______ over the physical medium

Answer 29

bits

Question 30

Layer 2 lies between the physical layer and the _______ layer.

Answer 30

network

Question 31

The ________ layer is responsible for the process-to-process delivery of the entire message.

Answer 31

transport

Question 32

The _______ model shows how the network functions of a computer ought to be organized.

Answer 32

OSI

Question 33

As the data packet moves from the upper to the lower layers, headers are _______.

Answer 33

added

Question 34

The _______ layer is responsible for delivering data units from one station to the next without errors.

Answer 34

data link

Question 35

The ______ layer is responsible for moving frames from one hop (node) to the next.

Answer 35

data link

Question 36

The _______ layer is the layer closest to the transmission medium.

Answer 36

physical

Question 37

The seven-layer _______ model provides guidelines for the development of universally compatible networking protocols.

Answer 37

OSI

Question 38

The process-to-process delivery of the entire message is the responsibility of the _______ layer.

Answer 38

transport